51022005 has 8 divisors (see below), whose sum is σ = 81635232. Its totient is φ = 27211728.

The previous prime is 51022003. The next prime is 51022033. The reversal of 51022005 is 50022015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51022005 - 2¹ = 51022003 is a prime.

It is a super-3 number, since 3×51022005³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 3401467 = 51022005 / (5 + 1 + 0 + 2 + 2 + 0 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700719 + ... + 1700748.

It is an arithmetic number, because the mean of its divisors is an integer number (10204404).

Almost surely, 2^51022005 is an apocalyptic number.

It is an amenable number.

51022005 is a deficient number, since it is larger than the sum of its proper divisors (30613227).

51022005 is a wasteful number, since it uses less digits than its factorization.

51022005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401475.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 51022005 is about 7142.9689205540. The cubic root of 51022005 is about 370.8963052033.

The spelling of 51022005 in words is "fifty-one million, twenty-two thousand, five".